2DT4:
reference: Crystal structure of Pyrococcus horikoshii PPC protein at 1.60 A resolution., Lin L, Nakano H, Nakamura S, Uchiyama S, Fujimoto S, Matsunaga S, Kobayashi Y, Ohkubo T, Fukui K, Proteins. 2007 May 1;67(2):505-7. PMID: 17295322

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